Defense Ministry Requests Investigation of Use of Outside Advisers

NEW DELHI—India's Ministry of Defense has asked for a government investigation into whether Rolls-Royce Holdings PLC illegally used outside advisers to obtain contracts in India, in the latest probe into the U.K. engine maker's global operations.

State-run Hindustan Aeronautics Ltd., which distributes and services the Rolls-Royce turbines in India, was informed by Rolls-Royce in December that the U.K. company used an outside adviser...